Aga MCP Server vs MCP Cryptography

A side-by-side look at the Aga MCP Server and MCP Cryptography MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Aga MCP Server logoAga MCP ServerCryptography · Local subprocess (stdio)Verifiable decision records for AI agents: signed receipts for calls to its own governed tools.61GoodAuth: not declaredMCP Cryptography logoMCP CryptographyCryptography · Local subprocess (stdio)MCP server exposing cryptography library functionality47FairAuth: not declared

Verdict: choose Aga MCP Server for cryptography work as a local process; choose MCP Cryptography for cryptography as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Aga MCP Server logoChoose Aga MCP Server when

  • You need dedicated capabilities in the Cryptography domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like get_server_info, get_portal_state, init_chain.
Explore Aga MCP Server

MCP Cryptography logoChoose MCP Cryptography when

  • You need dedicated capabilities in the Cryptography domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like generate_symmetric_key, generate_rsa_key, generate_x25519_key.
Explore MCP Cryptography

Feature & specification comparison

Rows where the two servers differ are marked.

SpecAga MCP Server logoAga MCP ServerMCP Cryptography logoMCP Cryptography
CategoryCryptographyCryptography
Quality signal61/100 · Good47/100 · Fair
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars00
Directory activity 1 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
Tools1514

Tools & capabilities

Aga MCP Server tools 15

  • get_server_infoGet AGA server info, public keys, and portal state.
  • get_portal_stateGet current portal state, loaded artifact info, and enforcement status.
  • init_chainInitialize continuity chain with genesis event.
  • attest_subjectAttest subject, generate sealed Policy Artifact. Auto-loads into portal.
  • measure_integrityMeasure subject state, compare to sealed reference. Generates signed receipt for every measurement.
  • revoke_artifactRevoke an active policy artifact mid-session. Portal terminates on next measurement. (NCCoE Phase 3b)
  • verify_chainVerify continuity chain integrity.
  • generate_evidence_bundleExport the canonical SEP evidence bundle: signed PERMITTED/DENIED tool-call receipts + Merkle proofs + a mandatory signed checkpoint, for offline third-party verification (verify_bundle_offline, aga-verify, or aga-receipt-spec/verify/verify-sep.mjs). Pin gateway_public_key to prove provenance.
  • verify_bundle_offlineVerify a canonical SEP evidence bundle offline (full §6 algorithm: structural floor, receipt signatures, chain+ordering, leaf-recompute + Merkle bijection, signed checkpoint). Pass pinned_public_key to also prove provenance.
  • request_claimRequest disclosure of a claim. Auto-substitutes if denied.
  • list_claimsList available claims with sensitivity levels.
  • delegate_to_subagentDerive a constrained policy artifact for a sub-agent. Scope can only diminish, never expand. (NCCoE constrained delegation)
  • +3 more on the listing page

MCP Cryptography tools 14

  • generate_symmetric_keyGenerate a Fernet symmetric key
  • generate_rsa_keyGenerate an RSA key pair
  • generate_x25519_keyGenerate an X25519 key pair
  • hash_sha256SHA-256 hash
  • hash_sha512SHA-512 hash
  • hash_sha1SHA-1 hash
  • hmac_signGenerate HMAC
  • hmac_verifyVerify HMAC
  • pbkdf2_derivePBKDF2 key derivation
  • scrypt_deriveScrypt key derivation
  • generate_self_signed_certGenerate self-signed certificate
  • parse_certificateParse X.509 certificate
  • +2 more on the listing page

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Aga MCP Server

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "aga-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@attested-intelligence/aga-mcp-server@3.6.6"
      ]
    }
  }
}

MCP Cryptography

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "mcp-cryptography": {
      "command": "uvx",
      "args": [
        "mcp-cryptography"
      ]
    }
  }
}

Frequently asked questions

Aga MCP Server is categorized under Cryptography and uses a local stdio subprocess. MCP Cryptography belongs to Cryptography and uses a local stdio subprocess. Pick Aga MCP Server for cryptography work and MCP Cryptography for cryptography.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Aga MCP Server has no declared pricing — check the project's own site. MCP Cryptography has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add aga-mcp-server and mcp-cryptography as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Aga MCP Server has a quality signal of 61/100 (Good) with 1 views, 0 installs and 0 GitHub stars. MCP Cryptography has 47/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.